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@@ -80,6 +80,122 @@ First, you must import it to allocate memory in the engine for your Lua script.
 
 
 
+
+## KeyCode
+
+The `KeyCode`  defines constants for all the keys available in the system. These constants are mapped to their respective key codes, allowing a standardized way to handle keyboard input.
+
+### KeyCode Values
+Here is a list of all the available key codes:
+
+#### Alphanumeric Keys
+- `KeyCode.A` to `KeyCode.Z`: Letters A to Z
+- `KeyCode.D0` to `KeyCode.D9`: Digits 0 to 9
+
+#### Punctuation and Special Characters
+- `KeyCode.Space`: Spacebar
+- `KeyCode.Apostrophe`: '
+- `KeyCode.Comma`: ,
+- `KeyCode.Minus`: -
+- `KeyCode.Period`: .
+- `KeyCode.Slash`: /
+- `KeyCode.Semicolon`: ;
+- `KeyCode.Equal`: =
+- `KeyCode.LeftBracket`: [
+- `KeyCode.Backslash`: \
+- `KeyCode.RightBracket`: ]
+- `KeyCode.GraveAccent`: `
+
+#### Function Keys
+- `KeyCode.F1` to `KeyCode.F25`: Function keys F1 through F25
+
+#### Arrow Keys
+- `KeyCode.Up`: Up Arrow
+- `KeyCode.Down`: Down Arrow
+- `KeyCode.Left`: Left Arrow
+- `KeyCode.Right`: Right Arrow
+
+#### Navigation Keys
+- `KeyCode.Home`: Home
+- `KeyCode.End`: End
+- `KeyCode.PageUp`: Page Up
+- `KeyCode.PageDown`: Page Down
+
+#### System Keys
+- `KeyCode.Escape`: Escape
+- `KeyCode.Enter`: Enter
+- `KeyCode.Tab`: Tab
+- `KeyCode.Backspace`: Backspace
+- `KeyCode.Insert`: Insert
+- `KeyCode.Delete`: Delete
+
+#### Modifier Keys
+- `KeyCode.LeftShift`, `KeyCode.RightShift`: Left and Right Shift
+- `KeyCode.LeftControl`, `KeyCode.RightControl`: Left and Right Control
+- `KeyCode.LeftAlt`, `KeyCode.RightAlt`: Left and Right Alt
+- `KeyCode.LeftSuper`, `KeyCode.RightSuper`: Left and Right Super (e.g., Windows key)
+- `KeyCode.Menu`: Menu Key
+
+#### Keypad Keys
+- `KeyCode.KP0` to `KeyCode.KP9`: Keypad numbers 0 to 9
+- `KeyCode.KPDecimal`: Decimal point on the keypad
+- `KeyCode.KPDivide`: Divide on the keypad
+- `KeyCode.KPMultiply`: Multiply on the keypad
+- `KeyCode.KPSubtract`: Subtract on the keypad
+- `KeyCode.KPAdd`: Add on the keypad
+- `KeyCode.KPEnter`: Enter on the keypad
+- `KeyCode.KPEqual`: Equal on the keypad
+
+#### Lock Keys
+- `KeyCode.CapsLock`: Caps Lock
+- `KeyCode.NumLock`: Num Lock
+- `KeyCode.ScrollLock`: Scroll Lock
+
+#### Miscellaneous Keys
+- `KeyCode.PrintScreen`: Print Screen
+- `KeyCode.Pause`: Pause
+- `KeyCode.World1`, `KeyCode.World2`: Additional international keys
+
+---
+
+## `Engine.KeyDown` Function
+
+### Description
+The `Engine.KeyDown` function checks if a specific key is currently pressed.
+
+### Syntax
+```lua
+Engine.KeyDown(keyCode)
+```
+
+### Parameters
+- `keyCode`: A value from the `KeyCode` enumeration representing the key to check.
+
+### Returns
+- `true` if the specified key is pressed.
+- `false` if the specified key is not pressed.
+
+### Example Usage
+```lua
+local KeyCode = require("./assets/scripts/keycode")
+
+-- Check if the "W" key is pressed
+if Engine.KeyDown(KeyCode.W) then
+    print("W key is pressed")
+end
+
+-- Check if the Space key is pressed
+if Engine.KeyDown(KeyCode.Space) then
+    print("Space key is pressed")
+end
+```
+
+This function is ideal for handling real-time input, such as moving a character in a game or interacting with UI elements.
+
+
+
+
+
 ## Math Library Wiki
 
 ## Overview